suhner



o. sUHNE'R Jan. 27, 1931.

MEANS FOR MOUNTING ROTATING BODIESl UPON DRIVING SHAFTS 2 Sheets-Shet l Filed Feb. 20, 1930 Jan. 27, 1931. I o. sUHNER 1,790,445

MEANS FOR MOUNTING ROTATING BODIES UPON DRIVING SHAFTS www 121191111X! Jan. `27', 1931 7 Ult-irre Simms@ orroisurimrt, or BRUGG, SWITZEJEQLAND-] 'Bearing' devices` for thei'vheele of' rond Yehieles are. already kiioivii, iii vWiiieh zuiiii'-V dieifihber Sleeve interposed betiife'eiijthe eide `ziiidthe hub offthe Wheel., Iii' that @use however i'ilyia yielding Support of the 'Wheei upoii lion-'rotatable laxle' is outenipiated. Iii'diiziiiibber,im4 Lions' iii 'joiiit eoiiiieetioiiq,` are e156kiiowi.i "7 f5 W Noiy'thepresept invention reliitesto Abeeiu i0 ing deil'ieeY for rotetiiig bodies such eebriiidiiigi`1v1iee1s for eiiz'iiiipiea iii- Whieh'awii iiidiiiubherfriiig riot only'serves the-purpose of yieldi-iigiy 'supp'ortiiig' the Wheel but also serves es a iiiezi'n'sy forg'traiisiiiit'tiiig'power troni ledriviiig'eha'ft to the frevolvingbody. This 'eiiii ie tt'eiifie'dreoeordiiig vto 1 the iii-Yen'- tioii bynippiiig the-iiidierubher ring `bet'wtfveeii .twoj preslsure Cones hiouijltedjiipori the shaft aiidfoiiiig together a reoess, and 4lloyflthe at that two vnipping iaiigfes bolted together eeteblishfz't iiippiii'g and di'ivin'gconiieetion betwieeii the ViiidierubbeifV ring 'and the rotating body,1 but` permit :i selt'fcriteriug ofl the latter. f' Two eoiistructioii-a-lf examples-'of the iiiveiitioii fare illustrated in the aecoiiipanyiug .digiwjfiiigs7 infivhieh I Y Filgiii'fe 1- shows a. @rose section throughthe bearing' device lot the first eoiistruotioiini fo-1711i, mid l Figiirex@ a partial section 011 the liiiierm--m in Figjjiire l.

Figure Srshows e Cross sectioii-throiighthe Secondeoiietiuotioiietor-iii,11iidv Figure 49a partiel'seetioii-thereof on the line ?/Z-'z/liii Figure Y e VIii thef-Case of the rpreeeiit, example, the rotet'iiigfbody is assumed to be :e grinding' di, @and 'theldrivi-iig ofthe grinding dise is ejti'eeted by means ofe tie A exemple aceordiiig to Iiigfsf'l and 2,1 eiiotes 'the driving shaft zuid 2 the grinding Wheel. -Upoii 'the' Shatter-e' mounted two pressure `coiie'er zind4,lwh ieh abiitugniiist oiieaiiother zuid Whiohform together a ehziiiiiei of gemir -cirouhir'cross Section; Inths t eiiiiei au euiiiihiriiidieriibher body. `rests 1 itiiitsroih shaped iuteriiei surface. Therubber. bodyV is pressedby the=pressurecoiies 8 ii-iid against tthe interiielfeurifeoefofialsteel sleeve S, rJ'his 'Since between the internal i i't; Xiithe n i Figures .two iiipp'iii l or chtuipi lin Swtg:,i'laiid. February 27, 1929.

steel sieei'e v forms lthe hollow eyhiidrizii tei-nal thread' of the holiow Shank; :iiidpfresfges with loose fiiiteriiiediete ringe l2 upoii t1ie ll''iiiidiiig dise-72 und uploii,thejiiidierubber nipping pressure, by-tighteuingrthe nutll iii increasingly Secure coiiiieetioii of theJi rubber ririV 6 with, the ,l grinding iwheel iS}- provided. @Wing to the ooi'iiietioii otitiiegrindiiig' dise 2 withlltherubber i'iiigi','byliiieeiifothe iiippiiigimiges 10- iiiid .1L Mid-rubber riiig (i is caused tofziseietgiiitieiisiiitt' igthetorque.

)ping` ofhthe iiidarubber ringe. dhythl Sieev the exterim,iiippiiigh ith nipping'K 'fi eliges 10 ,'ai'id-l-i 1 1 po tonie ofthe.giziiidiiigdise ifa: ev Vcted afterY rocking of. the grinding-.dise upon the ii ir'- mal speed of revohitoii heiiig' attained, owing' to the aetionwoi ceiitriiigdbgl to say', thel central Vpiane ther' )it :tdjiitlitseif -perijieudiouhi t() @Whig to the'hiose rings 12, piiigm 'Huug y1l gire. @being tigiteued` vthe grinding? dieu Z :ludthe rubbeii'iiigj I1re prevented fromV iotiitiiiggjvith thieiiri i iohl: M proifided iii the nippiiiglfiziiiges serve for theieceptouof the driviiig'pins' of an iiisertion spziiiiier orkey.- Theiiiutue.'v abutting bueheg` 3 `:iiid il are secured iiitheirpositioii oii tbeoiie hund by a iittiiiglfoii theexle and oii'zthe other Ahund hij the tigrhieiijiiig of the iiut 16 oiithe shaft f1. 17 Lshows Viipieoe ofthe i handleV Y. through f; Wh-ieh ,Y ,the ieXible f lliift passes. n A A i y The eon'str,iietioimLv exemple according to which are Connected fiifitli `one :mother by has .a White iiietlelsieevel, which bears upon the indiarubber body 6. l i vided .with vseiiiiygeyliiiyd'rioel reeysses., meedeed iii the; iiidini-rubber.,body1 ziiid iii lthe which permit ofthe iiitrodutioii Treff Serews g stiiges lSkiIid 1) This, Sleevejs pro H The Q0, which serve both as tappets for the grinding wheel and for the tightening of the clamping flanges. In order to prevent friction between the indiarubber body and the screws when tightening or loosening the screws, bushes 23 are fitted in. For the protection of the operator the clamping flanges are provided with annular ribs 2st, which cover the heads of the screws.

From the above description it will be seen that owing to the arrangement described the grinding proceeds without vibrations since any sudden pressure of the work lis so coinpensated for by virtue of the resilient supporting of the grinding wheel tnat. uniform grinding takes place, with automatic centering of the grinding wheel. At the same time the effect is enhanced, since every grain on the entire breadth of the wheel comes into action. it follows from this that. for egual wear a higher output capacity is obtained than with ordinary grinding wheels. 'ljhe danger of the grinding wheel flying ofl is eliminated by the self-centering, as compared with corresponding),` wheels having eccentric bearings. Furthermore by the present bearing device it is rendered possible to machine a piece of work with the grinding wheel right into all the details and practically to exclude filing work altogether.

The present device can also be fitted toany existing stationary grinding plant, provided it is mounted on a rigid shaft. lnstead of the working disc being pressed .against the clamped workpiece, the workpiece inustlon the contrary be pressed against the working disc.

The indiarubber body might also be provided itself with bores for the reception of the fastening bolts for the claiiiping flanges, and the metal bushes 3 and l might also be provided with ribs engaging in grooves in the indiarubber ring.

What claiin is l l. Means for mounting an annular rotating body upon a driving sliaft, comprising two pressure cones mounted on the driving shaft with their smaller ends close together,

the external surfaces of the pressure cones being of such shape that they form together an annular groove, an indiarubber ring located in the annular groove between the pressure cones and the internal periphery of the rotating body, and two clamping flanges screwed together and gripping between them the rotating body and the indiarubber rinO, an annularlportioii of which comprised lbetween the pressure cones -and the clan'iping flanges being free to permit self-centenng` of the rotating body.

Y 2. Means for mounting an annular rotating body upon a driving shaft, comprising two pressure cones mounted on the driving shaft with their smaller ends close together, the external surfaces of the pressure cones being of such shape that they form together an annular groove, an indiarubber ring located in the annular groove between the pressui'e cones and. the internal periphery of the rotating body, a clamping flange adapted to bear against the rotating body and the indiarubber rin g on one side, an externally screwthreaded cylindrical member rigid with the said clamping flange and adapted to pass through the central aperture in the rotating body, an internally screw-threaded clampingl flange adapted to engage with the externally screw-threadwl cylindrical member and fo bear against the other side of the rotating body and of the indiaiubber ring, a loose ring interposed between the rotating body and the adjacent surface of the internally threaded flange, and a second loose ring interposed bctween the indiarnbbcr ring and the adjacent surface of the internally threaded flange.

3. Means for mounting an annular rotating body upon a driving shaft, comprising two pressure cones mounted on the driving shaft with their smaller ends close together, the external surfaces of the pressure cones being of such shape that they form together an annular groove, an indiarubber ring located in the annular groove between the pressure cones and the internal periphery of the rotating body, a clamping flange adapted to bear against the rotating body and the indiarubber ring on one side, an externally screw-threaded cylindrical member rigid with the said clamping flange and adapted to pass through the central aperture in the rotating body, and an internally screwthreaded clamping flange adapte-d to engage with the externally screw-threaded cyliiidrical member and to bear against the other side of the rotating body and of the indiarubber ring, the two clamping flanges being formed with holes adapted to engage with a spanner for the purpose of tightening and loosening the said flanges. Y

4. -Means for mounting an annular rotating body upon a driving shaft, comprising` two pressure cones mounted on the driving shaft with their smaller ends close together, the external surfaces of the pressure cones being of such shapev that they forin together an annular groove, an indiaiubber ring located in the annular groove between the pressure cones and the internal periphery of the rotating body,` two clamping flanges gripping between them the rotating body andthe indiarubber ring, and screws extending through the central aperture in the rotating body to secure the two flanges to one another, the indiarubber ring being foi-ined with longitudinal recesses in its external periphery adapte-d to engage with the screws.

5. Means for mounting an annular rotating body upon a driving shaft, comprising two pressure cones mounted on the driving llO shaft with their smaller ends close together, the external surfaces of the pressure cones being of such shape that they form together an annular groove, an indiarubber ring located in the annular groove between the pressure cones and the internal peripheryof the rotating body, two clamping flanges gripping between them the rotating body and the indiarubber ring, screw bolts extending through the central aperture in the rotating body to secure the two flanges to one another, the india-rubber ring being formed with longitudinal recesses in its eX- ternal periphery adapted to engage with the screw bolts, nuts co-acting with the screw bolts, and circular protecting ribs on the outer faces of the two flanges surrounding the bolt heads and nuts.

(3. Means for mounting an annular rotating body upon a driving shaft, coni'fprising an abutment on the driving shaft, two pressure cones mounted on thez driving shaft with their smaller ends'close together, one of the pressure cones bearing against the abutment, a screw thread ontheV driving shaft, a nut ,engaging with the screw thread on the driving shaft and adapted `when screwed up topress the pressure cone that is remote from the abutment towards the other and thereby to press the other pressure cone against the abutment, the external surfaces of the pressure cones being of suoli shape that they form together an annular groove, an indiarubber ring located in the Vannular groove, between the pressurecones and the interna-l periphery of the rotating body, and two clamping flanges screwed together and gripping between them the rotating body 'andthe india-` rubber ring. 1

7. Means for mounting an annular rotating body upon a flexible driving'shaft, comprising a rigid shaft element, means for connecting the rigid shaft element to the flexible driving shaft for power transmission, two pressure conesmounted on theY rigid shaft ele-- ment with their smaller ends close together, the external surfaces of the pressure cones being ofn such shape that they formV together an annular groove, an indiarubber ring located in the annular lgroove between the pressure cones and the internal periphery of the rotating body, and two clamping flanges screwed together and gripping between them the rotating bodyV and the indiarubber ring.

8. Means for mounting` an annular grinding wheel upon a driving shaft, comprising two pressure cones mounted on the driving" shaft with their smaller ends close together,

the external surfaces of the pressure cones' being of such shape that they form together an annular groove, an indiarubber ring located in the annular groove between the pressure cones and the internal periphery of the grinding wheel, and two clamping flanges screwed itogether and gripping between them gethler,,onejtvof the1` pressure cones bearing 15 against the abutment, a screw thread on the rigid shaft element, a nut engaging with the` screw thread on the rigidlshaft element and adapted when screwed up to press the pressure cone that is remote from the abutment towards the other and thereby to press the other pressure cone against the abutment, an indiarubber ring located in the annular groove between the pressure cones and the internal periphery of the grinding` wheel, a clamping flange adapted to bear against the rotating body and the indiarubber ring on one side, an externally screw-threaded cylin# drica-l member rigid with the saidv clamping flange and adapted to pass through the cen tral aperturevin the rotating body, an internally screw-threaded clamping flange adapted to engage with the externally screwthreaded cylindrical member and to bear against the other side of the rotating body and of the indiarubber ring, a loose ring interposed between the rotating body and the Y adjacent surface `of the internally threaded flange, and a seco-nd loose ring interposed between the lndiarubber ring and the ad]acent lsurface of the internally threaded flange, the

two clamping flanges being formed with holes adapted to engage with aispanner for the c purpose of tightening and loosening the said flanges.

10. Means for mounting an annular grinding wheel upon a. flexible driving shaft, comprising a rigid shaft. element, means for con necting the rigid shaft element tothe flexible driving shaft for power transmission, an abutment on the rigid shaft ele-ment, two pressure cones mounted on the rigid shaft element with theirV smaller ends close together, one of the pressure cones bearing against the abutment, a screw thread on the-rigid shaft element, a nut engaging with the screw thread on the rigid shaft element and adapted when screwed up to press the pressure cone that is remote from the abutment towards the other and thereby to press the other pressure Y cone against the abutment, the external surfaces of theV pressure cones being of such shape that they form together an annular groove, an indiarubber ring located in the annular fgroove between the pressure cones and the internal periphery the grinding wheel, two clamping flanges ripping between them the rotating body and the indiarubber ring, screw bolts extending through the centralaperture inthe rotating@ body to secure the two flanges to one another, the ndiarubber ring being formed with longitudinal recesses n its external periphery adapted to engage with the screw bolts, nuts eo-actng with the screw bolts, and circular protecting ribs on the outer faces of the two Hanges surrounding the bolt heads and nuts.

In testimony whereof I have axed my signature.

OTTO SUHNER. 

